Buying used games can result in 0% profit most of the time for the store, it's easy to say "give us money" when you don't know all of the information. When you've got like 30 people returning some stuffty Wii game, they'll give each person money, but the amount always depends on how many they have in stock, how new the game is, etc etc, or else they would take a financial hit. The used price is gouged a bit so they can make money back from the initial purchase, or else you'd see stores going under all over the place.
